Re: [Hamlib-developer] Problem with G232B Timing out

[David B. <da...@ba...>]

Could you add -vvvv to the end of the command to see all the commands? Redirect to a log file.

-m 603 -r COM8 -t 8533 -s 38400 -vvvv

Also 38400 is quite high for a rotator, try 19200 or even 9600.

73 de David M0DGB/G8FKH



From: Steve Cummins <ill...@ho...>
Sent: 23 October 2025 15:49
To: ham...@li...
Subject: [Hamlib-developer] Problem with G232B Timing out
Importance: High

rotctld, Hamlib 4.5.5 Apr 05 11:43:08Z 2023 SHA=6eecd3
Report bugs to <ham...@li...<mailto:ham...@li...>>

rot_init called
initrots4_gs232a called
rot_register (601)
rot_register (609)
rot_register (610)
rot_register (602)
rot_register (603)
rot_register (611)
rot_register (612)
rot_register (604)
rot_register (605)
rot_register (606)
rot_register (607)
rot_register (608)
gs232b_rot_init called
set_conf: called
rot_open called
serial_open: COM8
serial_setup: tcgetattr
serial_setup: cfsetispeed=38400,0x000f
serial_setup: cfsetospeed=38400,0x000f
serial_setup: data_bits=8
serial_setup: parity=0
serial_setup: Handshake=None
serial_setup: tcsetattr TCSANOW
read_string_generic called, rxmax=4095 direct=1, expected_len=1
tcflush
Opened rot model 603, 'GS-232B'
Backend version: 20220109.0, Status: Stable

Good day fine people.
I'm using ROTCTLD with the following settings "-m 603 -r COM8 -t 8533 -s 38400" to control my ERC-M controller by DF9GR
The software I am using is "SkyRoof" which generally works very well, but I believe ROTCTLD drops the TCP connection on occasions and gives a time-out message.
>From the ERC-M controller I can see the rotators are turning towards their desired az & el, but the feedback from rotctld to SkyRoof is dropped. The problem exposes itself by  showing the antenna position as being static in SkyRoof, before sometimes jumping to the actual updated position if it doesn't time out.
I have tried varying baud rates, firmware updates, controller calibration all to no avail. I have even tried a different PC with the same results.
The regular PC is has W11Pro.
Are you able to give me any advice as to how I may remedy this behaviour please?
73
Steve GJ6WRI & Op GH5DX (for www.dx-world.net<http://www.dx-world.net>)